53578512 has 60 divisors (see below), whose sum is σ = 161485324. Its totient is φ = 16485120.

The previous prime is 53578507. The next prime is 53578519. The reversal of 53578512 is 21587535.

53578512 is a `hidden beast` number, since 535 + 78 + 51 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3111696 + 50466816 = 1764^2 + 7104^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (53578519) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12439 + ... + 16182.

Almost surely, 2^53578512 is an apocalyptic number.

53578512 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

53578512 is an abundant number, since it is smaller than the sum of its proper divisors (107906812).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53578512 is a wasteful number, since it uses less digits than its factorization.

53578512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28648 (or 28639 counting only the distinct ones).

The product of its digits is 42000, while the sum is 36.

The square root of 53578512 is about 7319.7344214117. The cubic root of 53578512 is about 376.9903348234.

The spelling of 53578512 in words is "fifty-three million, five hundred seventy-eight thousand, five hundred twelve".